Can you add a trailer wiring harness to an Indian with the rear camera and lane monitoring?

I’ve worked with a few customers on this and, yes, with modification required in some cases, you can use trailer wiring solutions on Indians with these other rider assistance technologies. I’ll give you the short answer and the long answer.

Short Answer:

Order the Indian 4 wire trailer kit for all applications, whether your trailer has combined brake lights and turn signals. The 4-wire kit works fine on these bikes.

https://openroadoutfitters.com/indian-4-wire-trailer-harness/

If your trailer has brake lights that operate separately from the turn signals and your bike has Rider Assistance tech, do not order the Indian 5 wire kit we sell. Instead, purchase the 4-wire kit and add an inexpensive 2-to-3 tail light splitter to the output of the isolator. See the long answer for more detail.

Long Answer:

If you want a longer explanation, here is why the 5-wire kit is incompatible with Rider Assistance bikes, and more information about the workaround…

The current 5-wire kit we sell uses a module that reads the CAN bus signals on a bike’s wiring harness and converts those signals into actions. The action it performs is to read the bike’s turn signals and brake light status and send each of those to separate channels for a trailer with brake lights that operate separately from the turn signals. This works on both Harleys and (until now) most Indians.

On Indians with Rider Assistance technology, those CAN bus signals have changed and the current module is unable to interpret them properly. There are three ways to get around this issue. 

Workaround 1: If your trailer has red turn signal lenses, you don’t have to run the brake lights separately. Instead, you can use a 4-wire setup on your bike. Your brake signal will appear on the same lights as the turns. However, because those lenses are red, you’ll be legal.

Workaround 2: If your trailer has amber turn signals, another option is to rewire the brake lights to operate as brake and turn signals, then follow workaround 1. This is easier to do if your trailer uses commonly-available lights.

Workaround 3: Inexpensive modules are available on Amazon that perform the same signal splitting function as the CAN bus module, but they are installed on the isolator output. You would want something like this one. I am not endorsing it, I don't get a commission for recommending it. I'm just saying a 2-to-3 splitter like this one should work. https://www.amazon.com/dp/B08MZ9CC2S/